805850005 has 8 divisors (see below), whose sum is σ = 973425024. Its totient is φ = 640410000.

The previous prime is 805849981. The next prime is 805850009. The reversal of 805850005 is 500058508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 805850005 - 2¹⁷ = 805718933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805850009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532921 + ... + 534430.

It is an arithmetic number, because the mean of its divisors is an integer number (121678128).

Almost surely, 2^805850005 is an apocalyptic number.

It is an amenable number.

805850005 is a deficient number, since it is larger than the sum of its proper divisors (167575019).

805850005 is a wasteful number, since it uses less digits than its factorization.

805850005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067507.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 805850005 is about 28387.4973359752. The cubic root of 805850005 is about 930.5750499887.

The spelling of 805850005 in words is "eight hundred five million, eight hundred fifty thousand, five".